{"title":"Adafruit SGP30 Air Quality Sensor Breakout - VOC and eCO2","handle":"adafruit-sgp30-air-quality-sensor-breakout-voc-and-eco2","url":"/products/adafruit-sgp30-air-quality-sensor-breakout-voc-and-eco2","description":"The Adafruit SGP30 is a multi-pixel MOX (metal-oxide) gas sensor from Sensirion that measures Total Volatile Organic Compounds (TVOC) and equivalent CO2 (eCO2) for indoor air quality monitoring. With fully calibrated output signals and I2C interfacing, it provides a straightforward way to detect changes in air quality.\n\nThe sensor combines multiple metal-oxide sensing elements on a single chip along with a built-in microcontroller that handles power management, analog reading, baseline calibration, and TVOC/eCO2 calculation. Unlike the CCS811, this sensor does not require I2C clock stretching.\n\nKey Features\n\n\nTVOC Measurement – 0 to 60,000 ppb (parts per billion)\n\neCO2 Measurement – 0 to 60,000 ppm (equivalent CO2 calculated from H2 concentration)\n\nCalibrated Output – Typical accuracy of 15% within measured values\n\nBuilt-in Baseline Calibration – Automatic calibration tracking with ability to save/restore baselines\n\nHumidity Compensation – Accept external humidity data over I2C for improved accuracy\n\nI2C Interface – No clock stretching required\n\n3.3 V / 5 V Compatible – Onboard 1.8 V regulator and level shifting\n\n\n\nNote: The SGP30 calculates eCO2 based on hydrogen concentration — it is not a true CO2 sensor. For direct CO2 measurement, consider a dedicated NDIR or photoacoustic CO2 sensor. Like all VOC/gas sensors, calibration against known sources is recommended for precise measurements.\n\n\nAlso Consider\n\n\nSCD-40 True CO2 Sensor – Photoacoustic sensor that directly measures CO2 (400–2,000 ppm)\n\nSCD-30 NDIR CO2 Sensor – True CO2 sensor with 400–10,000 ppm range\n\n\nIdeal For\n\nIndoor air quality monitoring and trend detection\nSmart ventilation and HVAC triggering\nEnvironmental sensing projects\nAir quality comparison and relative measurement\n\n\nPackage Contents\n\n1× Adafruit SGP30 Air Quality Sensor Breakout\n","vendor":"Adafruit","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":8320,"title":"Default Title","sku":"AF-3709","price":35.51,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}